Culvert mold



July 17, 1923.

'T. DE LA MARE CULVERT MOLD KIM W u ,Q\. 1 R o 0 Ti. El RA QK QX T. DE LA MARE CULVERT MOLD & wig

July 17, 1923.

T. DE LA MARE CULVERT MOLD wmsflald July 17, 1923.

11,461,973 T. DE LA MARE CULVERT MOLD Filed March 11. 1921 4 SheetsSheet 4 Patented July 17, 1923.

UNITED STATES THOMAS DE LA MARE, OF TOOELE, UTAH.

CULVERT MOLD.

Application filed March 11, 1921. Serial No. 451,426.

To all whom it may concern:

Be it known that I, TnoMAs DE. LA MARE, a citizen of the United States, residing at Tooele, in the county of Tooele and State of Utah, have invented a new and useful Culvert Mold, of which the following is a specification.

The device forming the subject matter of this application is a mold, and, generally stated, the invention aims to provide novel means for forming a culvert and the portal thereof.

One object of the invention is to provide a mold of the sort mentioned which may be made cheaply. A further object of the invention is so to construct the mold that the same may be expanded or contracted readily, to permit the making of culverts of different sizes.

It is within the province of the invention to improve generally and to enhance the utility of devices of that type to which the invention appertains.

I do not bind myself to the specific forms shown in the drawings and described, since, within the scope of what is claimed, a mechanic may make changes in details, without departing from the spirit of the invention, or impairing the utility of the device.

In the drawings Figure 1 shows in top plan with parts broken away, a device constructed in accordance with the invention; Figure 2 is a vertical longitudinal section; Figure 3 is a transverse section on the line 3-3 of Figure 2; Figure 1 is a perspective view showing one of the outer plates of the mold in which the portal is formed; Figure 5 is a perspective view depicting the inner plate of the portal-mold; Figure 6 is a perspective view showing one of the cross wall plates in the portal-mold; Figure 7 is a perspective view delineating the main cross wall plate; Figure 8 is a perspective view disclosing one of the wall members of the mold wherein the portal is fashioned; Figure 9 is a perspective view showing one of the wall members; Figure 10 is a perspective view wherein another of the wall members of the portal-mold appears; Figure 11 is a perspective view showing still another of the wall members; Figure 12 is a two-part perspective view illustrating the relations which exist between certain members of the culvert mold; Figure 13 is a top plan showing a modified form of the invention; Figure 14 is a two-part perspective view illustrating certain elements used in the form shown in Figure 13; Figure 15 is an end elevation showing a modified form of the invention; Figure 16 is an end elevation showing a further modification; Flgure 17 is a perspective view showing a prop used when the parts are arranged as shown in Figure 16.

The device forming the subject matter of this application comprises two main essential parts, to wit, a culvert mold, and a mold wherein a portal for the culvert is formed. The aforesaid parts will be considered in order and, referring to the culvert mold, the same may be said to comprise oppositely disposed trough-shaped main members 1, Each main member 1 embodies asidewall 2, a bottom 3 and a top 4, the bottom and the top being located at an angle to the horizontal, when the mold is set up as shown in Figure 3.

Ameans is provided whereby the culvert mold may be contracted, to facilitate the withdrawal of the mold from the finished product, and with this end in view, brackets 5 are secured to the side walls 2 of the main members 1, inwardly extended links 6 being pivoted at their outer ends, as shown at 7, to the brackets, the inner ends of the links being overlapped. The links 6 may be pieces of two by such that the links may be made cheaply, replaced or altered, as occasion may demand. The overlapped ends of the links 6 have openings 8 (Figure 1) wherein connec tions 9, such as bolts, are mounted. Owing to the fact that there are many of the openings 8, the width of the culvert mold may be varied as occasion demands. An operating member 10, preferably in the form of a rigid bar, extends between the links 6 and is mounted on the connections 9, the operating member having a handle 11 at one end. It is clear that when longitudinal movement is imparted to the operating member 10 by way of the handle 11, the links 6 will be swung, and the main members 1 will be drawn inwardly, thereby bringing about a contraction of the mold, and facilitating the removal of the mold from the completed culvert.

The top at of each main member 1 is provided with adepending ing an upstanding flange 14 on the bottom 3 four, the construction being flange 12, there be- 7 of the main member. Braces 15 are pivoted at their upper ends, as shown at 16, to.

the flanges 12 and are adapted to bear at their lower ends on the bottom 3, within the flange 14. It is clear that the braces 15 serve to sustain and strengthen the mold.

By comparing Figure 12 with Figure 3, it will be noted that sockets 17 are mounted on the flange 12 of the main member 1, the sockets being adapted to receive fingers 19, extended downwardly from upper extension plates 18, .:the outer edges of which overlap the tops 4 of the main members 1. The inner edge of the upper extension plate 18 is provided with sockets 21, adapted to receive the fingers 19 on a like plate, it being possible by adding plates 18, to increase the' width of the mold to any desired extent. Braces 22 are pivoted at 23 to the flanges 20 and hear at their lower ends on lower extension plates 24 having upstanding fingers 25 engaged in sockets 26 on flanges 14 formed on the bottoms 3 of the main members 1, as hereinbefore alluded to, the outer edges of the plates 24 overlapping the parts 3, as shown in Figure 3. The braces 22 sustain the mold, as has been explained in connection with the braces 15. The lower extension plates 24 are provided on their inner edges with upstanding flanges 27 having sockets .28 adapted to receive the fingers 25 of additional plates 24, in order to provide for an increase in width in the culvert mold.

The upper extension plates 18 are surmounted by a bridge plate 29, and strips of cloth, denoted by the numeral 30, extend longitudinally of the mold, on top of the bridge plate 29 and the upper extension plates 18. The strips of cloth facilitate the removal of the mold, and leave a smooth and finished product. The advantages of the cloth strips have not been dwelt upon to any great ex tent, because the strips are covered in my co-pending application.

Having concluded the description ofthat part of the mold wherein the culvert is fashioned, the mold for the portal will now be taken up. 7

The portal comprises a main transverse wall, whereunto the culvert is joined, and wing walls projecting from the main wall. That portion of the mold wherein the wing walls are made, is detailed in Figures 4, 5 and 6, and includes an outer plate 31 having a standard 32 provided with sockets 33 wherein are received and held the inner arms 34 of U-shaped guides 35 and 35", the outer arms ofthe guides being denoted by the numeral 36. The plate 31 has an end wall 37, and is provided on its upper edge with a flange 38. A plurality of openings 39 are located in the end wall 37. An inner plate 40 is disposed approximately parallel to the plate 31 and has a flange 41 on its upper edge, the plate 40 having an end kind to the members 69.

flange 42 provided with openings 43. The flange 42 abuts against the flange 37 and the openings 43 are alined with the openings 39 to receive securing elements 44. The wing wall is formed between the plates 31 and 40, and, since there are a plurality of openings 39 in the end wall 37, the wing wall of the portal may be made in different thicknesses.

The main transverse wall of the portal is formed in part by end members 45 having flanges 46 overlapped on the plates 40, the flanges 46 having openings 47 alined with openings 48 in the plates 40 to receive bolts or the like, shown at 49. The lower edge of each member 45 is inclined as indicated at 930, to correspond with the transverse slope of the parts 4 and 18. The members 45 are supplied at their inner ends with openings 50 adapted to be alined with openings 51 in the main member 52 of the cross wall portion of the mold, the openings 50 and 51 being adapted to receive securing elements 53, and the construction being such that the mold for the portal may be adjusted in width. The member 52 is supplied at its upper edge with a flange 54 having openings 55. Wall plates, which may be channels 56, are mounted within the U- shaped guides 35 and have flanges 57 provided with openings 58 adapted to receive securing elements 59 whereby the lowermost of the wall plates 56 may be connected, as indicated in Figure 2, to the plate 52, by way of the holes in the flange 54. The uppermost wall plate may if desired be in the form of an angle member 60, shown in Figure 11 and having a flange 61 provided with an opening 62, for the reception of the securing element 59, should the member cooperate directly with the member 52 of Figure 7. Wall members 64, which may be channels, are provided, and include an upper flange 65 having openings 66, and a lower flange 67 having openings 68, the wall members 64 being located in the guides 35. lVall members 69 are provided and have upper flanges 70 equipped with openings 71 adapted to receive securing devices 72 mounted for adjustment in any of the openings 68 of the lowermost wall member or channel. 64. Adjacent to their inner ends, the wall members 69 areinclined as shown at 73, to correspond with the slope of the parts 4 and 18 of Figure 3, the sloping edges 73 having flanges 74. The end portions of the members 69 have outstanding lips 75 provided with openings 76 facilitating the attachment of extensions of any desired The fingers 34 and 36 of the guides 35 and 35 may be connected by ties 81, which may be blocks having openings for the reception of the elements 34 and 36.

In order to secure the culvert mold to the portal-mold, one arm of an angle bracket 7 '7 is secured to the bridge plate 29, as shown at 7 8, the other arm of the bracket being secured at 79 to the member 52 of Figure 7 the said member having openings 80, receiving for adjustment, the securing element 7 9.

In practical operation, the concrete is floated in the bottom of a ditch and upon the base thus formed, the mold is set up, as

shown in Figure 3, the tubular portion of the culvert mold exercising its obvious function, the cross wall of the portal being formed between the members 64 and 56, and the wing walls being fashioned between the plates 31 and 40.

At times, it may not be desirable to dispose the portal at right angles to the flowline of the culvert, and then recourse is had to the structure shown in Fig. 13. It is possible, also, to omit the parts 18 of Fig. 3 and to use the bridge plate, only, with themain members. Thus, in Figure 13, the main members appear at 82 and the bridge plate at 83. Auxiliary members 84 are provided, the same constituting continuations of the members 82. An auxiliary bridge plate 86 is supplied, the parts 8 1 and 86 being cut off at a bevel, as indicated at 87, so that the culvert mold may be disposed at an acute angle to that part of the portal mold wherein the cross wall of the portal is made. In Figure 13, parts of the portal mold hereinbetore described are designated by numerals previously used with the suffix a.

Referring to Figure 16, parts hereinbetore described have been designated by numerals previously used, with the sufiix b. The culvert has a flat bottom 88, on which the mold for the body portion of the culvert is erected. Props 89 are placed under the side portions of the mold, each prop comprising a side strip 90 and inwardly extended arms 91 which are downwardly inclined. The side strips 90 prevent the concrete from finding its way under the mold, and the culvert, obviously, will have a flat bottom. The props 89 may or may not be secured to the members 1 of the mold, as is found expeclient.

In Figure 15, parts hereinbetore described have been designated by numerals previously used, with the suiiix c. A if-shaped bottom member 92 is provided, and is supplied adjacent to its upper edges with inwardly projecting supports 98, carrying the mem here 1 of the mold. When the concrete is formed around the complete structure thus produced, the culvert will have a sharply defined V-shaped tread, which is desirable under some conditions, particularly if the amount of liquid traversing the culvert is small. Such a culvert is easy to clean out. A hose may be laid along the V-shaped tread of the culvert, and water may be run through the hose, the hose being pulled slowly backward, the tread of the culvert being scoured out by the water. I i

I claim 1. A culvert mold comprising oppositely disposed trough-shaped main members each including a bottom, a side wall and a top; means for bridging the space between the tops of the main members; and braces pivoted to the tops of the main members and engaged detachably with the bottoms of the main members.

2. A culvert mold comprising oppositely disposed trough-shaped main members each including a bottom, a sidewall and a top; lower extension plates overlapped on the bottoms; interengaging elements on the ex tension plates and on the bottoms; upper extension plates overlappedon the tops; interengaging elements on the upper extension plates and the tops; and a bridge plate closing the space between the upper extension plates.

8. A culvert mold constructed as set forth in claim 2, and further characterized by the provision of links having their outer ends pivoted to the side walls of the main members; and an operating member extended longitudinally of the mold and pivoted to the inner ends of the links.

1. A culvert mold constructed as set forth in claim 2, and further characterized by the provision of braces pivoted at their upper ends to the upper extension plates and hearing at their lower ends on the lower extension plates.

5. A culvert mold constructed as set forth in claim 2 and further characterized by the provision of braces pivoted at their upper ends to the upper extension plates and bearing at their lower ends on the lower extension plates; and braces pivoted at their upper ends to the tops of the main members and hearing at their lower ends on the bottoms of the main members.

6. A culvert mold constructed as set forth in claim 2, and further characterized by the provision of links havingtheir outer ends pivoted to the side walls of the main members; an operating member extended longitudinally of the mold and pivoted to the inner ends of the links; braces pivoted at their upper ends to the upper extension plates and bearing at their lower ends on the lower extension plates.

7. In a device of the class described, a portal mold embodying outer plates having spaced guides; inner plates; means for connecting the inner plates to the outer plates to form wing wall molds; a molding member extended between the inner plates; wall members mounted in one guide and supported on the molding member other wall members mounted in the other guide in spaced relation to the first specified wall members; and a culvert mold connected to 'ber, and

the molding member and extended beneath said other wall members, in vertically spaced relation thereto.

8. A device of the class described, constructed as set forth in claim 7, and further characterized by the fact that the molding member embodies auxiliary members connected to the inner plates, a central main member overlapped on the auxiliary memsecuring elements connecting the main and auxiliary members, the main member having a plurality of openings for the reception of the securing elements, thereby to provide for adjustment. I

9. A device of the class described, including a portal mold embodying outer plates provided at one end With spaced guides, and provided at the other end with end Walls; inner plates cooperating With the outer plates to form Wing Wall molds, the inner plates having flanges overlapped on the end Walls; securing devices connecting the flanges and the end Walls, the end Walls hav ing a plurality of openings for the securing devices, to afford adjustment; a cross Wall comprising auxiliary members secured to the inner plates, and a central main member; securing devices connecting the main and auxiliary members, the main member having a plurality of openings for the securing devices, to allord adjustment; and Wallforming members in the guides, the Wallforming members of one guide being sup ported on the cross Wall.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

THOMAS DE LA MARE.

Witnesses:

F. L. SEARCH, MASON B. LAWTON. 

